EP0103724B1 - Roue de véhicule à pneumatique pour cycles - Google Patents

Roue de véhicule à pneumatique pour cycles Download PDF

Info

Publication number
EP0103724B1
EP0103724B1 EP83107720A EP83107720A EP0103724B1 EP 0103724 B1 EP0103724 B1 EP 0103724B1 EP 83107720 A EP83107720 A EP 83107720A EP 83107720 A EP83107720 A EP 83107720A EP 0103724 B1 EP0103724 B1 EP 0103724B1
Authority
EP
European Patent Office
Prior art keywords
hump
rim
bead
raised portion
tyre
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83107720A
Other languages
German (de)
English (en)
Other versions
EP0103724A1 (fr
Inventor
Heinrich Döring
Herbert Ing. Heuer (Grad.)
Manfred Dipl.-Ing. Kunz
Rudolf Ritensek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental AG
Original Assignee
Continental AG
Continental Gummi Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental AG, Continental Gummi Werke AG filed Critical Continental AG
Priority to AT83107720T priority Critical patent/ATE19373T1/de
Publication of EP0103724A1 publication Critical patent/EP0103724A1/fr
Application granted granted Critical
Publication of EP0103724B1 publication Critical patent/EP0103724B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
    • B60C5/16—Sealing means between beads and rims, e.g. bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/003—Spoked wheels; Spokes thereof specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/10—Rims characterised by the form of tyre-seat or flange, e.g. corrugated

Definitions

  • the invention relates to pneumatic tires for bicycles, with a wheel rim, the radially supporting bead surfaces of which are drawn in conically from the rim flanges at an acute angle against the axial direction and are delimited on the inside by a circumferential bump-like elevation leading to a deepened central rim area .
  • the new design of the wheel rim offers surprising advantages for bicycle wheels.
  • the all-round bump-like elevation ensures that the tires remain firmly and airtight on the rim, even against strong lateral forces, while on the other hand, due to their specific shape with the drop center, the circular arc-shaped curvature enables the tires to slide on easily during assembly and also provides favorable conditions for one early contact with the tire beads and thus for trouble-free inflation with a hand pump.
  • the matching of the largest diameter of the bump-like elevation to the largest rim outer diameter also enables the fitting of tires with tubes, so that, depending on requirements or circumstances, it is possible to switch between tubeless and tubed tires without difficulty.
  • the invention is illustrated by the schematic representation of an embodiment in the drawing.
  • the only figure in the drawing shows a bicycle rim in cross section on a greatly enlarged scale.
  • the rim is made as a one-piece molding, for example from light metal or a high-strength plastic, and is attached to a hub (not shown) using pressure-tightly inserted spokes 1 in a manner known per se. It is designed in a symmetrical design with bulging surfaces 3 which rise obliquely outwards from a recessed central region 2 via rounded arches and rim flanges 4 serving as a closure on both sides.
  • the bead seating surfaces 3 extend in a straight line at an angle a of approximately 10 ° against the axial direction and radially support the beads 15 of the pneumatic tire 5, which is only partially indicated, while the rim flanges 4, which are aligned essentially in radial planes, axially fix the tire.
  • the tire 5 itself is intended in the exemplary embodiment shown to be used without an additional, separate inner tube and, in consideration thereof, with an airtight inner lining 25, which is preferably adhered to the entire surface and pulled around the beads 15 outwards.
  • the rim is formed with bump-like elevations or cross-sectional projections 6.
  • the elevations can be retrofitted to the rim manufactured for example, for example by welding, or instead can be formed from the outset in the manner of beads.
  • Your outer edge 16 facing the tire beads 15 is, in close adaptation to the bead contours, predominantly rectilinearly inclined at an angle (p of approximately 30 ° to the radial direction and merges via a rounding arc into the inner edge 26 curved according to a circular arc line, the dimension for the Radius of curvature r of the circular arc line moves in an order of magnitude approximately corresponding to the width of the tire bead 15.
  • An important condition in the context of the present invention is that the largest diameter D in the region of the transition arc between the outer and inner edges 16 and 26 of the elevations 6 is the same or at least is essentially equal to the largest diameter of the bead seating surfaces 3. The fulfillment of this condition enables the use of the novel rim with tubeless as well as with tubular tires.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Claims (3)

1. Roue de cycle à pneumatique, avec une jante dont les faces (3) d'appui du talon soutenant radialement le pneumatique sont rabattues, à partir des rebords (4) de la jante, en cône et suivant un angle aigu (a) par rapport à la direction axiale, et limitées du côté intérieur par un bossage (6) circulaire se raccordant à une base centrale (2) surbaissée de la jante, ladite route étant caractérisée en ce que:
a) le bord extérieur (16) du bossage (6) en regard du talon (15) adjacent du pneumatique est rectiligne et incliné vers l'intérieur suivant un angle aigu (ϕ) compris entre 20 et 40° par rapport à la direction axiale;
b) le bord intérieur (26) du bossage (6) opposé au talon adjacent du pneumatique est courbe suivant un arc de cercle à rayon (r) de l'ordre de grandeur de la largeur axiale du talon (15) du pneumatique; et
c) le diamètre maximal (D) du bossage (6) est sensiblement égal au diamètre maximal de la face d'appui (3) du talon dans la zone de raccordement au rebord (4) de la jante.
2. Roue selon revendication 1, caractérisée en ce que les faces (3) d'appui du talon sur la jante sont inclinées vers l'intérieur suivant un angle (a) de l'ordre de 10° environ par rapport à la direction axiale.
3. Roue selon revendications 1 et 2, caractérisée en ce qu'elle est équipée d'un pneumatique (5) sans chambre, comprenant un revêtement intérieur (25) étanche à l'air.
EP83107720A 1982-09-20 1983-08-05 Roue de véhicule à pneumatique pour cycles Expired EP0103724B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107720T ATE19373T1 (de) 1982-09-20 1983-08-05 Luftbereiftes fahrzeugrad fuer fahrraeder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823234803 DE3234803A1 (de) 1982-09-20 1982-09-20 Luftbereiftes fahrzeugrad insbesondere fuer fahrraeder
DE3234803 1982-09-20

Publications (2)

Publication Number Publication Date
EP0103724A1 EP0103724A1 (fr) 1984-03-28
EP0103724B1 true EP0103724B1 (fr) 1986-04-23

Family

ID=6173676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107720A Expired EP0103724B1 (fr) 1982-09-20 1983-08-05 Roue de véhicule à pneumatique pour cycles

Country Status (4)

Country Link
EP (1) EP0103724B1 (fr)
JP (1) JPS5975801A (fr)
AT (1) ATE19373T1 (fr)
DE (2) DE3234803A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347119A1 (de) * 1983-12-22 1985-07-18 Mannesmann Kronprinz Ag, 5650 Solingen Verfahren zur herstellung von felgen fuer schlauchlose bereifung und nach dem verfahren hergestellte felgen
DE3924600A1 (de) * 1989-07-25 1991-01-31 Sp Reifenwerke Gmbh Radfelge fuer fahrzeugluftreifen
JP2663054B2 (ja) * 1991-01-11 1997-10-15 日野自動車工業株式会社 レベリングバルブ
JP2663053B2 (ja) * 1991-01-11 1997-10-15 日野自動車工業株式会社 レベリングバルブ
DE4429492A1 (de) * 1994-08-19 1996-02-22 Audi Ag Felge für Kraftfahrzeuge
FR2766419B1 (fr) 1997-07-25 1999-10-01 Mavic Sa Jante de bicyclette prevue pour un montage tubeless et roue de bicyclette
US6568766B1 (en) 2001-02-28 2003-05-27 Shimano Inc. Bicycle rim
US6582029B2 (en) 2001-05-25 2003-06-24 Shimano Inc. Bicycle rim
JP2003105854A (ja) * 2001-09-27 2003-04-09 Sekisui Chem Co Ltd 付帯構造物の支持構造及びその施工方法
AT412628B (de) * 2003-10-14 2005-05-25 Xentis Composite Produktions & Felge
US20110084543A1 (en) * 2009-05-30 2011-04-14 Reynolds Cycling Llc Bead Seat Clincher

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198978A (en) * 1938-08-26 1940-04-30 T R Rooney Rim construction
GB686145A (en) * 1950-04-07 1953-01-21 Gen Tire & Rubber Co Tubeless pneumatic tyre assembly
US2698042A (en) * 1950-09-13 1954-12-28 Goodrich Co B F Air-sealing tire liner
DE1002210B (de) * 1955-03-26 1957-02-07 Manfred Juengling Einlage fuer schlauchlose Reifen
US3709561A (en) * 1970-12-14 1973-01-09 Biasse R De Brake and wheel assembly for motorcycles and the like
GB1410914A (en) * 1971-10-02 1975-10-22 Dunlop Ltd Vehicle wheel rims
IT1026673B (it) * 1973-12-14 1978-10-20 Kronprinz Ag Cerchione a letto profondo per ructe di veicoli
IT1031185B (it) * 1974-02-26 1979-04-30 Kronprinz Ag Ruota per veicolo con pneumatico senza tubolare

Also Published As

Publication number Publication date
DE3363175D1 (en) 1986-05-28
DE3234803A1 (de) 1984-03-22
ATE19373T1 (de) 1986-05-15
JPS5975801A (ja) 1984-04-28
EP0103724A1 (fr) 1984-03-28

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